Keith Wayne Hovis

Transfer of catalyst

Catalytic alkylation process and apparatus

Method for regeneration of a hydrogen fluoride alkylation catalyst containing sulfone, water, and ASO

Method for preventing the accumulation of light ASO in the alkylation catalyst of alkylation process system

Fluid flow control and isolation

Transfer of acid catalyst

Method for separating sulfone from a hydrocarbon stream having a small concentration of sulfone

Control of HF alkylation propane stripper

Method for regenerating a hydrogen fluoride and sulfone alkylation catalyst

Method for separating sulfone from a hydrocarbon stream having a concentration of sulfone and producing a dry sulfone product